Abstract
We present a low-cost, large-scale method of fabricating biomimetic dry adhesives. This process is useful because it uses all photosensitive polymers with minimum fabrication costs or complexity to produce molds for silicone-based dry adhesives. A thick-film lift-off process is used to define molds using AZ 9260 photoresist, with a slow acting, deep UV sensitive material, PMGI, used as both an adhesion promoter for the AZ 9260 photoresist and as an undercutting material to produce mushroom-shaped fibers. The benefits to this process are ease of fabrication, wide range of potential layer thicknesses, no special surface treatment requirements to demold silicone adhesives and easy stripping of the full mold if process failure does occur. Sylgard Registered-Sign 184 silicone is used to cast full sheets of biomimetic dry adhesives off 4'' diameter wafers, and different fiber geometries are tested for normal adhesion properties. Additionally, failure modes of the adhesive during fabrication are noted and strategies for avoiding these failures are discussed. We use this fabrication method to produce different fiber geometries with varying cap diameters and test them for normal adhesion strengths. The results indicate that the cap diameters relative to post diameters for mushroom-shaped fibers dominate the adhesion properties.
Sameoto, D;
Menon, C
[1]
- MENRVA Group, School of Engineering Science, Simon Fraser University Burnaby, BC V5 A 1S6 (Canada)
Citation Formats
Sameoto, D, and Menon, C.
A low-cost, high-yield fabrication method for producing optimized biomimetic dry adhesives.
United Kingdom: N. p.,
2009.
Web.
doi:10.1088/0960-1317/19/11/115002.
Sameoto, D, & Menon, C.
A low-cost, high-yield fabrication method for producing optimized biomimetic dry adhesives.
United Kingdom.
https://doi.org/10.1088/0960-1317/19/11/115002
Sameoto, D, and Menon, C.
2009.
"A low-cost, high-yield fabrication method for producing optimized biomimetic dry adhesives."
United Kingdom.
https://doi.org/10.1088/0960-1317/19/11/115002.
@misc{etde_22183192,
title = {A low-cost, high-yield fabrication method for producing optimized biomimetic dry adhesives}
author = {Sameoto, D, and Menon, C}
abstractNote = {We present a low-cost, large-scale method of fabricating biomimetic dry adhesives. This process is useful because it uses all photosensitive polymers with minimum fabrication costs or complexity to produce molds for silicone-based dry adhesives. A thick-film lift-off process is used to define molds using AZ 9260 photoresist, with a slow acting, deep UV sensitive material, PMGI, used as both an adhesion promoter for the AZ 9260 photoresist and as an undercutting material to produce mushroom-shaped fibers. The benefits to this process are ease of fabrication, wide range of potential layer thicknesses, no special surface treatment requirements to demold silicone adhesives and easy stripping of the full mold if process failure does occur. Sylgard Registered-Sign 184 silicone is used to cast full sheets of biomimetic dry adhesives off 4'' diameter wafers, and different fiber geometries are tested for normal adhesion properties. Additionally, failure modes of the adhesive during fabrication are noted and strategies for avoiding these failures are discussed. We use this fabrication method to produce different fiber geometries with varying cap diameters and test them for normal adhesion strengths. The results indicate that the cap diameters relative to post diameters for mushroom-shaped fibers dominate the adhesion properties.}
doi = {10.1088/0960-1317/19/11/115002}
journal = []
issue = {11}
volume = {19}
journal type = {AC}
place = {United Kingdom}
year = {2009}
month = {Nov}
}
title = {A low-cost, high-yield fabrication method for producing optimized biomimetic dry adhesives}
author = {Sameoto, D, and Menon, C}
abstractNote = {We present a low-cost, large-scale method of fabricating biomimetic dry adhesives. This process is useful because it uses all photosensitive polymers with minimum fabrication costs or complexity to produce molds for silicone-based dry adhesives. A thick-film lift-off process is used to define molds using AZ 9260 photoresist, with a slow acting, deep UV sensitive material, PMGI, used as both an adhesion promoter for the AZ 9260 photoresist and as an undercutting material to produce mushroom-shaped fibers. The benefits to this process are ease of fabrication, wide range of potential layer thicknesses, no special surface treatment requirements to demold silicone adhesives and easy stripping of the full mold if process failure does occur. Sylgard Registered-Sign 184 silicone is used to cast full sheets of biomimetic dry adhesives off 4'' diameter wafers, and different fiber geometries are tested for normal adhesion properties. Additionally, failure modes of the adhesive during fabrication are noted and strategies for avoiding these failures are discussed. We use this fabrication method to produce different fiber geometries with varying cap diameters and test them for normal adhesion strengths. The results indicate that the cap diameters relative to post diameters for mushroom-shaped fibers dominate the adhesion properties.}
doi = {10.1088/0960-1317/19/11/115002}
journal = []
issue = {11}
volume = {19}
journal type = {AC}
place = {United Kingdom}
year = {2009}
month = {Nov}
}